Cleaning device and cleaning robot

Abstract

The application relates to a cleaning device and a cleaning robot. The cleaning device comprises a base, a lifting mechanism in sliding connection with the base, a driving mechanism arranged on the base, the driving mechanism driving the lifting mechanism to slide relative to the base, and a cleaning mechanism arranged on the lifting mechanism, the cleaning mechanism comprising a mop for cleaning a working surface, the cleaning mechanism being capable of sliding with the lifting mechanism relative to the base to change the distance between the mop and the working surface. When the mop is lowered by a certain distance to contact the working surface, the mop can clean the working surface; when the mop stops cleaning the working surface, the mop can be lifted to keep a certain distance from the working surface, so that the cleaning device can pass over obstacles or avoid the mop contacting a cleaning object such as a carpet to cause pollution. Thus, the convenience of using the cleaning device is improved.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a cleaning device and a cleaning robot. Background Technology

[0002] With the rapid development of technology, artificial intelligence and robotics have penetrated all aspects of production and life. Cleaning robots have emerged in this context, offering highly efficient cleaning capabilities and providing great convenience to modern homes and workplaces. Driven by the continuous advancements in artificial intelligence and robotics, the functions and performance of cleaning robots are constantly improving. Despite these significant advancements, cleaning robots still face many technological challenges. For traditional cleaning robot devices, the distance between the mop and the work surface remains constant during the cleaning process, which affects the ease of use of the device. Utility Model Content

[0003] One of the technical problems addressed by this application is how to improve the ease of use of cleaning devices.

[0004] A cleaning device, comprising:

[0005] Base;

[0006] The lifting mechanism is slidably connected to the base;

[0007] A drive mechanism is disposed on the base, and the drive mechanism drives the lifting mechanism to slide relative to the base; and

[0008] A cleaning mechanism is mounted on the lifting mechanism. The cleaning mechanism includes a mop for cleaning the work surface. The cleaning mechanism is capable of sliding relative to the base along with the lifting mechanism to change the distance of the mop relative to the work surface.

[0009] In one embodiment, the driving mechanism includes a drive shaft and a drive assembly, the drive shaft being rotatably connected to the base, and the drive assembly being connected to the drive shaft and driving the lifting mechanism to slide.

[0010] In one embodiment, the drive assembly includes a cam disposed on the drive shaft and rotatable about the central axis of the drive shaft, the cam driving the lifting mechanism to slide.

[0011] In one embodiment, the lifting mechanism has a support surface, and the cam abuts against the support surface to support the lifting mechanism. The cam has a proximal edge and a distal edge, and along the radial direction of the drive shaft, the proximal edge is closer to the central axis of the drive shaft than the distal edge. When the proximal edge abuts against the support surface, the distance between the mop and the working surface is minimal, and the mop is in a lowered state. When the distal edge abuts against the support surface, the distance between the mop and the working surface is maximized, and the mop is in a raised state.

[0012] In one embodiment, the lifting mechanism has a mounting hole, the cam is at least partially housed in the mounting hole, and the inner wall of the mounting hole includes the support surface.

[0013] In one embodiment, the drive assembly further includes a connecting rod, the two ends of which are rotatably connected to the lifting mechanism and the cam, respectively. Taking the connection position of the connecting rod and the cam as a reference position, the reference position is spaced apart from the drive shaft. Along the sliding direction of the lifting mechanism, when the reference position is closer to the working surface relative to the drive shaft, the distance between the mop and the working surface is minimal and the mop is in a descending state; when the reference position is farther from the working surface relative to the drive shaft, the distance between the mop and the working surface is maximum and the mop is in a rising state.

[0014] In one embodiment, the drive assembly includes a meshing gear and a rack, the gear being mounted on the drive shaft and rotatable about the central axis of the drive shaft, and the rack being mounted on the base or the lifting mechanism, the gear driving the rack to cause the lifting mechanism to slide relative to the base.

[0015] In one embodiment, the rack is slidably connected to the base, and the rack is slidable relative to the base along an extension direction perpendicular to the movement direction of the lifting mechanism and the central axis of the drive shaft; the rack includes a meshing portion and a first boss portion, the lifting mechanism includes a support portion and a second boss portion, the first boss portion protrudes towards the support portion and is disposed on the meshing portion, the second boss portion protrudes towards the meshing portion and is disposed on the support portion, and the gear meshes with the meshing portion; when the first boss portion abuts against the support portion, the distance between the mop and the working surface is minimal and the mop is in a lowered state; when the first boss portion abuts against the second boss portion, the distance between the mop and the working surface is maximum and the mop is in a raised state; or;

[0016] The rack is fixedly mounted on the lifting mechanism and extends along the direction of movement of the lifting mechanism. When the gear meshes with the end of the rack away from the working surface, the distance between the mop and the working surface is minimal and the mop is in a descending state. When the gear meshes with the end of the rack close to the working surface, the distance between the mop and the working surface is maximum and the mop is in a rising state.

[0017] In one embodiment, at least one of the following schemes is also included:

[0018] The drive assembly includes a rope, one end of which is fixed to the drive shaft and can be wound around the drive shaft. The other end of the rope is connected to the lifting mechanism. When the drive shaft winds up or releases the rope, the lifting assembly slides relative to the base.

[0019] The lifting mechanism includes two lifting blocks spaced apart, and the number of driving components includes two. The two driving components are respectively connected to the opposite ends of the driving shaft, and the two driving components drive different lifting blocks to slide synchronously relative to the base.

[0020] The cleaning mechanism is detachably connected to the lifting mechanism;

[0021] One of the base and the lifting mechanism is provided with an elongated hole and the other includes a protruding post. The elongated hole extends along the lifting direction of the lifting mechanism, and the protruding post slides through the elongated hole.

[0022] A cleaning robot includes a main unit and a cleaning device as described in any one of the above-mentioned methods, wherein the base is disposed on the main unit.

[0023] One technical advantage of one embodiment of this application is that the cleaning mechanism can descend or rise along with the lifting mechanism, thereby causing the mop to descend or rise relative to the work surface. When the mop descends a certain distance and comes into contact with the work surface, it can clean the work surface; when the mop stops cleaning the work surface, it can rise to maintain a certain distance from the work surface, allowing the cleaning device to overcome obstacles or avoid the mop coming into contact with cleaning objects such as blankets and causing contamination. In this way, the mop can be lowered or raised according to actual needs, thereby improving the applicability of the cleaning device to various working conditions and ultimately improving the ease of use of the cleaning device. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of the cleaning device provided in the first embodiment.

[0025] Figure 2 for Figure 1A schematic diagram of the planar cross-sectional structure of the cleaning device shown.

[0026] Figure 3 A three-dimensional structural diagram of the cleaning device provided in the second embodiment.

[0027] Figure 4 for Figure 3 A schematic diagram of the planar cross-sectional structure of the cleaning device shown.

[0028] Figure 5 A three-dimensional structural diagram of the cleaning device provided in the third embodiment.

[0029] Figure 6 for Figure 5 A schematic diagram of the planar cross-sectional structure of the cleaning device shown.

[0030] Figure 7 A three-dimensional structural diagram of the cleaning device provided in the fourth embodiment.

[0031] Figure 8 for Figure 7 A schematic diagram of the planar cross-sectional structure of the cleaning device shown.

[0032] Figure 9 A three-dimensional structural diagram of the cleaning device provided in the fifth embodiment.

[0033] Figure 10 for Figure 9 A schematic diagram of the planar cross-sectional structure of the cleaning device shown.

[0034] Reference numerals: Cleaning device 10, base 100, protruding column 110, lifting mechanism 200, lifting block 210, elongated hole 211, support surface 212, mounting hole 213, support part 214, second protrusion part 215, drive mechanism 300, drive shaft 310, drive assembly 320, cam 321, proximal edge 3211, distal edge 3212, connecting rod 322, reference position 3221, gear 323, rack 324, meshing part 3241, first protrusion part 3242, rope 325, cleaning mechanism 400, support member 410, mop 420. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figure 1 and Figure 2 An embodiment of this application provides a cleaning device 10 including a base 100, a lifting mechanism 200, a drive mechanism 300, and a cleaning mechanism 400. The lifting mechanism 200 is slidably connected to the base 100, allowing it to slide vertically relative to the base 100 and thus rise or fall. The drive mechanism 300 is mounted on the base 100 and drives the lifting mechanism 200 to slide relative to the base 100. The cleaning mechanism 400 is mounted on the lifting mechanism 200 and includes a mop 420 for cleaning a work surface. The cleaning mechanism 400 can move synchronously with the lifting mechanism 200 relative to the base 100, thereby changing the distance between the mop 420 and the work surface. Specifically, when the distance between the mop 420 and the work surface gradually decreases, the cleaning mechanism 400 can descend with the lifting mechanism 200; when the distance between the mop 420 and the work surface gradually increases, the cleaning mechanism 400 can rise with the lifting mechanism 200. The work surface can be the ground or a table, etc.

[0042] Therefore, the cleaning mechanism 400 can descend or rise along with the lifting mechanism 200, thereby causing the mop 420 to descend or rise relative to the work surface. When the mop 420 descends a certain distance and comes into contact with the work surface, it can clean the surface. When the mop 420 stops cleaning, it can rise to maintain a certain distance from the work surface, allowing the cleaning device 10 to overcome obstacles or prevent the mop 420 from contacting and contaminating objects such as blankets. This allows the mop 420 to be lowered or raised according to actual needs, improving the applicability of the cleaning device 10 to various working conditions and ultimately enhancing its ease of use.

[0043] See Figure 1 and Figure 2In some embodiments, the cleaning mechanism 400 further includes a support member 410, which circumferentially abuts against the work surface. The mop 420 can be wound and rolled up along the circumferential direction of the support member 410, while the mop 420 can rotate axially along the support member 410. The support member 410 can drive the mop 420 to clean the work surface. Because the support member 410 can wound and rolled up the mop 420 circumferentially, heavily soiled mops 420 are automatically wrapped around the support member 410, allowing clean mops 420 to be released for cleaning the work surface. This avoids the repeated use of soiled mops 420, thereby improving the cleanliness of the mop 420 and ultimately enhancing the cleaning effect of the cleaning mechanism 400. It is understood that the winding up of the mop 420 and the cleaning of the work surface by the mop 420 can be performed simultaneously or asynchronously. In some examples, the support member 410 can be a roller with a circular or polygonal cross-section. The mop can be wound around the roller and further wound around it as the roller rotates, achieving automatic mop replacement. With the roller in contact with the work surface, the automatically replaced mop can clean the work surface. In other examples, the support member includes a take-up component, a take-up component, and a mopping plate. The take-up component is used to output the mop, and the take-up component is used to wind the mop. The cooperation between the take-up and take-up components allows the mop to be output from the take-up component, passed through the mopping plate, and wound onto the take-up component. The mopping plate can then bring the mop into contact with the work surface, achieving cleaning of the work surface.

[0044] In this invention, a mop refers to a cleaning material that can be used for sweeping and mopping, including dry cleaning materials for sweeping and mopping work surfaces and wet cleaning materials for mopping work surfaces. The cleaning material can be cotton, polyester fiber, or non-woven fabric, etc., and is not limited thereto. Furthermore, the work surface in this invention can be a floor, tabletop, or glass surface; that is, the cleaning robot provided by this utility model can be a sweeping robot, a tabletop cleaning robot, or a window cleaning robot.

[0045] The support member 410 of the cleaning mechanism 400 can be detachably connected to the lifting mechanism 200, for example, by snap-fit ​​connection or threaded connection. One of the base 100 and the lifting mechanism 200 is provided with an elongated hole 211, and the other includes a protrusion 110. For example, the elongated hole 211 is provided on the lifting mechanism 200, and the base 100 includes the protrusion 110. The elongated hole 211 extends along the direction of movement of the lifting mechanism 200, that is, the elongated hole 211 extends vertically, and the protrusion 110 can extend horizontally. The protrusion 110 passes through the elongated hole 211, and the protrusion 110 can slide relative to the elongated hole 211. This allows the protrusion 110 to provide good guidance for the sliding of the lifting mechanism 200, improving the movement accuracy and stability of the lifting mechanism 200. It is understandable that when the protruding post 110 abuts against the upper end of the elongated hole 211, the lifting mechanism 200 and the mop 420 descend to the lowest position, and the distance between the mop 420 and the working surface is the smallest, so it is in a descending state; when the protruding post 110 abuts against the lower end of the elongated hole 211, the lifting mechanism 200 and the mop 420 rise to the highest position, and the distance between the mop 420 and the working surface is the largest, so it is in a rising state.

[0046] See Figure 1 and Figure 2 In some embodiments, the drive mechanism 300 includes a drive shaft 310 and a drive assembly 320. The drive shaft 310 is rotatably connected to the base 100, and the drive assembly 320 is connected to the drive shaft 310 and drives the lifting mechanism 200 to slide. For example, a motor can be installed on the base 100, which can drive the drive shaft 310, causing the drive shaft 310 to rotate relative to the base 100 around its central axis. The lifting mechanism 200 may include two lifting blocks 210 spaced apart. The number of drive assemblies 320 is two, and the two drive assemblies 320 are respectively connected to opposite ends of the drive shaft 310. The two drive assemblies 320 drive different lifting blocks 210 to slide synchronously relative to the base 100. In other embodiments, the number of drive assemblies 320 may be one. The lifting mechanism 200 also includes a connector connected between the two lifting blocks 210. When the drive assembly 320 drives one of the lifting blocks 210 to move, that lifting block 210 will drive the other lifting block 210 to produce synchronous lifting motion through the connector.

[0047] See Figure 1 and Figure 2In some embodiments, the drive assembly 320 includes a cam 321, which is disposed on the drive shaft 310. The drive shaft 310 can pass through the cam 321, so that the cam 321 is fixedly connected to the drive shaft 310. Therefore, the cam 321 will rotate synchronously with the drive shaft 310 around the central axis of the drive shaft 310. The cam 321 drives the lifting mechanism 200 to slide relative to the base 100, thereby generating lifting motion.

[0048] See Figure 1 and Figure 2 For example, the lifting block 210 of the lifting mechanism 200 has a support surface 212. The support surface 212 is horizontally arranged and located above the cam 321, so that the cam 321 abuts against the support surface 212, thereby enabling the cam 321 to support the lifting mechanism 200. The cam 321 has a proximal edge 3211 and a distal edge 3212. Along the radial direction of the drive shaft 310, the proximal edge 3211 is closer to the central axis of the drive shaft 310 than the distal edge 3212; that is, the distance from the proximal edge 3211 to the central axis is less than the distance from the distal edge 3212 to the central axis. Both the proximal edge 3211 and the distal edge 3212 can abut against the support surface 212. When the proximal edge 3211 abuts against the support surface 212, the distance between the mop 420 and the working surface is minimal, and it is in a descending state. When the distal edge 3212 abuts against the support surface 212, the distance between the mop 420 and the working surface is maximum, and it is in a rising state. Therefore, as the proximal edge 3211 gradually moves away from the support surface 212 and the distal edge 3212 gradually moves closer to the support surface 212, the mop 420 will gradually rise relative to the base 100, following the upward movement of the lifting mechanism 200. Conversely, as the distal edge 3212 gradually moves away from the support surface 212 and the proximal edge 3211 gradually moves closer to the support surface 212, the mop 420 will gradually descend relative to the base 100, following the downward movement of the lifting mechanism 200. This enables the drive assembly 320 to drive the lifting mechanism 200 to move up and down relative to the base 100.

[0049] The lifting block 210 of the lifting mechanism 200 may have a mounting hole 213, and the cam 321 is at least partially housed in the mounting hole 213. The inner wall surface of the mounting hole 213 includes a support surface 212. By housing the cam 321 in the mounting hole 213, the mounting hole 213 provides protection for the cam 321, and the cam 321 also supports the lifting mechanism 200 by supporting the inner wall surface of the mounting hole 213, thereby realizing the lifting movement of the lifting mechanism 200. This simplifies the structure of the cleaning device 10 to a certain extent.

[0050] See Figure 3 and Figure 4For example, the drive assembly 320 also includes a connecting rod 322. The two ends of the connecting rod 322 are rotatably connected to the lifting block 210 and the cam 321 of the lifting mechanism 200, respectively. For instance, the two ends of the connecting rod 322 can be rotatably connected to the lifting block 210 and the cam 321 via pins. The position where the connecting rod 322 and the cam 321 are rotatably connected is taken as the reference position 3221. The reference position 3221 is spaced apart from the drive shaft 310, such that the axis around which the connecting rod 322 rotates relative to the cam 321 is spaced apart from the axis around which the cam 321 rotates (i.e., the central axis of the drive shaft 310). Along the sliding direction of the lifting mechanism 200, that is, in the vertical direction, when the reference position 3221 is closer to the working surface relative to the drive shaft 310, i.e., when the reference position 3221 is directly below the drive shaft 310, the distance between the mop 420 and the working surface is minimized, and it is in a descending state. When the reference position 3221 is further away from the working surface relative to the drive shaft 310, that is, when the reference position 3221 is directly above the drive shaft 310, the distance between the mop 420 and the working surface is at its maximum, and it is in a raised state. Therefore, as the reference position 3221 moves from directly above the drive shaft 310 to directly below the drive shaft 310, the mop 420 will gradually descend along with the lifting mechanism 200 moving downward relative to the base 100; conversely, as the reference position 3221 moves from directly below the drive shaft 310 to directly above the drive shaft 310, the mop 420 will gradually rise along with the lifting mechanism 200 moving upward relative to the base 100. This achieves the lifting motion of the drive assembly 320 relative to the base 100, causing the lifting mechanism 200 to move up and down.

[0051] See Figure 5 and Figure 6 In some embodiments, the drive assembly 320 includes a gear 323 and a rack 324, which mesh with each other. The gear 323 is mounted on the drive shaft 310 and can be fixedly connected to the drive shaft 310. The drive shaft 310 passes through the gear 323, allowing the gear 323 to rotate synchronously around the central axis of the drive shaft 310. The rack 324 is mounted on the base 100 or the lifting block 210 of the lifting mechanism 200. The gear 323 drives the rack 324 to cause the lifting mechanism 200 to slide relative to the base 100, thus generating a lifting motion.

[0052] See Figure 5 and Figure 6For example, rack 324 is slidably connected to base 100. Rack 324 can slide relative to base 100 in a direction perpendicular to the movement direction of lifting mechanism 200 and the extension direction of the central axis of drive shaft 310. Rack 324 includes a meshing part 3241 and a first boss part 3242. Lifting block 210 of lifting mechanism 200 may include a support part 214 and a second boss part 215. Support part 214 may be located above meshing part 3241. First boss part 3242 protrudes from meshing part 3241 and protrudes towards support part 214. That is, first boss part 3242 protrudes upward relative to meshing part 3241. There may be two first boss parts 3242, and the two first boss parts 3242 are located at opposite ends of meshing part 3241. The second boss 215 protrudes from the support 214, facing the meshing part 3241, i.e., the second boss 215 protrudes downward. There can be two second bosses 215, which are spaced apart on the support 214. The distance between the two first bosses 3242 can be approximately equal to the distance between the two second bosses 215. The gear 323 meshes with the meshing part 3241 of the rack 324, thereby driving the rack 324 to slide relative to the base 100. When the first boss 3242 abuts against the support 214, the distance between the mop 420 and the working surface is minimal, and it is in a lowered state; when the first boss 3242 abuts against the second boss 215, the distance between the mop 420 and the working surface is maximum, and it is in a raised state. Therefore, as the first boss 3242 and the second boss 215 gradually approach and abut against each other, the mop 420 will gradually rise relative to the base 100 as the lifting mechanism 200 moves upward. As the first boss 3242 and the second boss 215 gradually separate, the mop 420 will gradually descend relative to the base 100 as the lifting mechanism 200 moves downward. This achieves the lifting motion of the driving assembly 320 relative to the base 100.

[0053] See Figure 7 and Figure 8For example, rack 324 is fixedly mounted on lifting mechanism 200 and extends along the direction of movement of lifting mechanism 200. When gear 323 meshes with the end of rack 324 furthest from the working surface, i.e., when gear 323 meshes with the upper end of rack 324, the distance between mop 420 and the working surface is minimal, and it is in a descending state. When gear 323 meshes with the end of rack 324 closest to the working surface, i.e., when gear 323 meshes with the lower end of rack 324, the distance between mop 420 and the working surface is maximum, and it is in a rising state. Therefore, as gear 323 gradually moves from the lower end of rack 324 towards the upper end of rack 324, mop 420 will gradually descend relative to base 100 as lifting mechanism 200 moves downward. As gear 323 gradually moves from the upper end of rack 324 towards the lower end of rack 324, mop 420 will gradually rise relative to base 100 as lifting mechanism 200 moves upward. This enables the drive component 320 to drive the lifting mechanism 200 to move up and down relative to the base 100.

[0054] See Figure 9 and Figure 10 In some embodiments, the drive assembly 320 includes a rope 325, one end of which is fixed to the drive shaft 310 and can be wound around the drive shaft 310. The other end of the rope 325 is connected to the lifting block 210 of the lifting mechanism 200. When the drive shaft 310 rotates to wind or release the rope 325, the lifting assembly slides relative to the base 100, thus generating a lifting motion. For example, when the rope 325 is released to a certain length, the distance between the mop 420 and the working surface is minimal, and the mop 420 is in a descending state; when the rope 325 is wound to a certain length, the distance between the mop 420 and the working surface is maximized, and the mop 420 is in a rising state. This achieves the drive assembly 320 driving the lifting mechanism 200 to generate a lifting motion relative to the base 100.

[0055] This application also provides a cleaning robot, which includes a main unit and the aforementioned cleaning device 10, with a base 100 mounted on the main unit. By providing this cleaning device 10, the ease of use of the cleaning robot can be improved.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cleaning device, characterized in that, include: Base; A cleaning mechanism, comprising a support and a mop, wherein the support is circumferentially capable of abutting against a work surface, and the support is used to roll up and wrap the mop along its circumferential direction, and to drive the mop to clean the work surface. A lifting mechanism is slidably connected to the base, and the cleaning mechanism is mounted on the base via the lifting mechanism. A drive mechanism is provided on the base, which is used to drive the lifting mechanism to slide relative to the base. The cleaning mechanism can follow the lifting mechanism to slide relative to the base to change the distance of the mop relative to the working surface.

2. The cleaning device according to claim 1, characterized in that, The driving mechanism includes a driving shaft and a driving assembly. The driving shaft is rotatably connected to the base, and the driving assembly is connected to the driving shaft and drives the lifting mechanism to slide.

3. The cleaning device according to claim 2, characterized in that, The drive assembly includes a cam, which is mounted on the drive shaft and is rotatable about the central axis of the drive shaft. The cam drives the lifting mechanism to slide.

4. The cleaning device according to claim 3, characterized in that, The lifting mechanism has a support surface, and the cam abuts against the support surface to support the lifting mechanism. The cam has a proximal edge and a distal edge. Along the radial direction of the drive shaft, the proximal edge is closer to the central axis of the drive shaft than the distal edge. When the proximal edge abuts against the support surface, the distance between the mop and the working surface is minimal, and the mop is in a lowered state. When the distal edge abuts against the support surface, the distance between the mop and the working surface is maximized, and the mop is in a raised state.

5. The cleaning device according to claim 4, characterized in that, The lifting mechanism has a mounting hole, and the cam is at least partially housed in the mounting hole. The inner wall of the mounting hole includes the support surface.

6. The cleaning device according to claim 3, characterized in that, The drive assembly also includes a connecting rod, the two ends of which are rotatably connected to the lifting mechanism and the cam, respectively. The connection position between the connecting rod and the cam is used as a reference position, which is spaced apart from the drive shaft. Along the sliding direction of the lifting mechanism, when the reference position is closer to the working surface relative to the drive shaft, the distance between the mop and the working surface is minimal and the mop is in a descending state; when the reference position is farther from the working surface relative to the drive shaft, the distance between the mop and the working surface is maximum and the mop is in a rising state.

7. The cleaning device according to claim 2, characterized in that, The drive assembly includes a meshing gear and a rack. The gear is mounted on the drive shaft and is rotatable about the central axis of the drive shaft. The rack is mounted on the base or the lifting mechanism. The gear drives the rack to make the lifting mechanism slide relative to the base.

8. The cleaning device according to claim 7, characterized in that, The rack is slidably connected to the base, and the rack can slide relative to the base in a direction perpendicular to the movement direction of the lifting mechanism and the extension direction of the central axis of the drive shaft; the rack includes a meshing portion and a first boss portion, the lifting mechanism includes a support portion and a second boss portion, the first boss portion protrudes towards the support portion and is disposed on the meshing portion, the second boss portion protrudes towards the meshing portion and is disposed on the support portion, and the gear meshes with the meshing portion; when the first boss portion abuts against the support portion, the distance between the mop and the working surface is minimal and the mop is in a lowered state; when the first boss portion abuts against the second boss portion, the distance between the mop and the working surface is maximum and the mop is in a raised state; or; The rack is fixedly mounted on the lifting mechanism and extends along the direction of movement of the lifting mechanism. When the gear meshes with the end of the rack away from the working surface, the distance between the mop and the working surface is minimal and the mop is in a descending state. When the gear meshes with the end of the rack close to the working surface, the distance between the mop and the working surface is maximum and the mop is in a rising state.

9. The cleaning device according to claim 2, characterized in that, It also includes at least one of the following options: The drive assembly includes a rope, one end of which is fixed to the drive shaft and can be wound around the drive shaft. The other end of the rope is connected to the lifting mechanism. When the drive shaft winds up or releases the rope, the lifting assembly slides relative to the base. The lifting mechanism includes two lifting blocks spaced apart, and the number of driving components includes two. The two driving components are respectively connected to the opposite ends of the driving shaft, and the two driving components drive different lifting blocks to slide synchronously relative to the base. The cleaning mechanism is detachably connected to the lifting mechanism; One of the base and the lifting mechanism is provided with an elongated hole and the other includes a protruding post. The elongated hole extends along the lifting direction of the lifting mechanism, and the protruding post slides through the elongated hole.

10. A cleaning robot, characterized in that, It includes a main unit and a cleaning device according to any one of claims 1 to 9, wherein the base is disposed on the main unit.

Images